TY  - BOOK
AU  - Richey Rita .
TI  - The Theoretical and conceptical Basis of instructional Design
SN  - 1-85091-146-0
U1  - 375.001  RIC
PY  - 1986///
CY  - London
PB  - Leogan Pub House
KW  - Instructional systems -- Planning
N1  - Includes bibliographical references and index
ER  -